Fire alarm and extinguisher.



J. HARTLEY.

FIRE ALARM AND EXTINGUISHER.

APPLICATION TILED SEPT. 24, 1912.

Patented Jan. 13, 1.914.

Snow W01 Jaamea Z arzwy abhor/nu 1 I 5 I w JAMES HARTLEY, OFPHILADELPHIA, PENNSYLVANIA.

FIRE ALARM AND EXTINGUISHER.

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To all whom it may concern:

Be it known that I, Janus HARTLEY, a

citizen of the United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented new and usefulImprovements in Fire Alarms and Extinguishers, of. which the followingis a specification. My invention relates to a new and useful improvementin fire alarms and eXtinguishers, and has for its object to provide anexceedingly simple and effective device which may be readily set to comeinto action at a predetermined temperature, and when this temperature isreached, the nozzle will be opened and the liquid flowing therefrom bethrown by an automatic spray wheel in such manner as to reach every partof the room in which the device is located.

A further object of my invention is to provide for the re-setting of thedevice after it has been brought into action by simply replacing a smallinexpensive disk on the face of the setting nut.

A still further object of my invention is to provide for the sending ofan alarm to a suitable station or annunciator so that the location ofthe device which has been set off will be at once determined.

With these ends in view, this invent-ion consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claim.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, I will describeits construction in detail, referring by numeral to the accompanyingdrawing forming a part of this application, in which Figure 1, is a sideelevation of my improved fire extinguisher showing it set. Fig. 2, is acentral vertical section of the device showing the movable parts in theposition they assume after the device has been set off. Fig. 3, is aplan view. Fig. 4, is a plan View of the spray wheel, and Fig. 5, is aface view of the bridge plate.

in carrying out my invention as here enlbodied Fig. 1 represents, what Iterm, the head, which has cast therewith a shank 2, said shank beingsuitably threaded for at tachment to the pipe line through which thewater or other extinguishing liquid flows and with this head is formed aframe 3 hav- Specification of Letters Patent.

Application filed September 24, 1912.

Patented Jan. if)", 1914. Serial No. 722,057.

ing a boss t formed on its lower end and an extension 5 of said bossbetween the side bars thereof. In these bosses are formed bearings inwhich the supporting rod 6 is fitted to slide vertically. The upper endof this rod has a socl et bearing for the reception of the spindle 7. Sis an automatic spray wheel attached to or formed with the spindle 7 andcarrying a valve 9 which latter is adapted to close upon the valve seat10. This valve and valve seat being here shown as conical but it is tobe understood that this valve and seat may be of any shape or designbest adapted to serve the purpose for which the device is intended.

The spray wheel consists of a rim 1]., a central section 12 and blades13 which latter may be formed with the central section and these bladesare set at an angle after the manner of propeller blades as clearlyshown in Fig. 2, for the purpose hereinafter set forth. The rod 6 isshouldered as indicated at 1st and a spring 15 is interposed betweensaid shoulder and a shoulder formed in the boss extension in such manneras to tend to force the rod downward from the position shown in Fig. 1,to the position shown in Fig. 2.

The boss 4 is threaded to receive the setting nut 25 which latter has ahole 16 in the bottom thereof through which the reduced portion 17 ofthe supporting rod 6 is adapted to pass. This nut has formed therewiththe lugs 18 the lower ends of which are inturned to support the bridgeplate 19 the latter having notches in its ends to engage the lugs 18 toprevent the accidental displacement of the bridge plate when the deviceis set. This bridge plate also has av hole in its center for the passingof the reduced portion of the supporting rod.

20 represents a disk which may be made of material, fusible at arelatively low temperature and adapted to be united to the lower face ofthe bridge plate over the central hole in order that the reduced portion17 of the supporting rod may rest thereon, or this disk may be made ofmaterial such as brass or iron and secured to the under side of thebridge plate with a solder whose fusing pointis low.

21 represents a contact strip which is see-- cured to but insulated fromthe setting nut and projects into the path of the reduced portion 17 ofthe supporting rod so that when the latter is forced downward by thespring 15 it will come in contact with said contact strip closing theelectric circuit in which is included the wire 22 attached to the frameby the screw 23, the frame, the supporting rod journaled in said frame,the contact strip 21 and the wire 24:. The wires 22 and 24 lead to acentral station and are connected with an annunciator so that when thecircuit is closed as just described, an alarm will be given at thecentral station and the location of the extinguisher which has been setoff, indicated.

The giving of an alarm and the indicating of the location of theextinguisher brought into action is of great importance since it oftensaves great damage from flooding.

From the foregoing description, the operation of my invention is asfollows: In practice the extinguishers are attached to branch pipesleading from the main line which supplies the extinguishing fluidusually water, and are located at differentpoints where fire is likelyto occur and each extinguisher is set by the valve 9 being forcedagainst its seat 10 by means of the setting nut 25 which carries by thebridge piece 19 and the disl 20, the latter being jammed against thesupporting rod with sufficient force to firmly hold the valve upon itsseat and prevent leakage. New should the temperature rise to a dangerouspoint predetermined by the fusing point of the disk or the solder bywhich it is attached to the bridge plate, the disk will be displacedfreeing the supporting rod which will be forced downward by the spring15 and the pressure upon the valve, bringing the parts to he positionshown in Fig. 2, and permitting the water to flow from the supply pipe.As this water flows from the supply pipe, it will be spread by the valve9 and will come in contact with the blades 13 cf the spray wheel causingsaid wheel to revolve and this revolving of the wheel will throw thewater to a relatively great distance in the form of spray, therebypreventing the fire from starting or if started extinguishing the same.

As before described as soon as the extinguisher is set in operation analarm will be turned in, indicating the location of the trouble in orderthat immediate attention may be given thereto.

When the extinguisher has been set off and accomplished its wor it isreadily reset by removing the bridge plate re-soldering a disk 20thereto replacing the plate and again jamming the valve against its seatand putting the device in condition for further use. This is of greatvalue in fire extinguishers of this class since it does not require thedisturbing of the extinguisher to re-set the same and can beaccomplished quickly and at imperceptible cost.

Of course I do not wish to be limited to the exact details ofconstruction here shown and described as various forms of designs ofspray wheels may be used without departing from the limits of theappended claim and other details of the device as here I shown may bealtered within the limits of said claim.

Having thus fully described my invention, what I claim as new anduseful, is

A fire extinguisher consisting of a head having a shank, a valve seatformed in said head, a valve for closing said seat, an automatic spraywheel carrying the valve, a supporting rod in which the wheel isjournaled, a frame in which the rod is ournaled, a setting nut adaptedto be screwed upon the frame, and a fusible disk carried by the settingnut for supporting said rod as specified.

In testimony whereof, I have hereunto afhxed my signature in thepresence of two subscribing witnesses.

JAMES HARTLEY.

Witnesses ROBERT DALE, GEORGE liLIoKnn.

Copies of this patent may be obtained for five cents each, by addressingthe Sommissioner of Patents,

Washington, D. G.

